How to lay tongue-and-groove slabs. The technological map has been developed for the installation of partitions from tongue-and-groove plates in buildings and structures for various purposes. Video - Do-it-yourself tongue-and-groove plates
This video shows the process of erecting a partition from hollow Volma tongue-and-groove slabs.
(GWP) is one of the most optimal building materials to create walls and partitions.
GWP is a gypsum block with a groove and a ridge along its ends, thanks to which they are assembled like a Lego constructor. Using given material, you can easily build a partition up to 6m long and up to 3.6m high.
The tongue-and-groove comb can be used in both dry and wet rooms. For installation of partitions in rooms with high humidity special moisture-resistant tongue-and-groove plates are made.
Tools and materials for the installation of a partition wall made of HGP
To mount a partition from tongue-and-groove plates, you will need the following materials and tools:
- GWP conventional or moisture resistant
- primer
- mounting adhesive
- gypsum putty
- mounting brackets (straight hangers can be used)
- dowel nails and screws
- spatulas: wide, for external and internal corners
- polyurethane foam
- level
- mallet
You can buy everything necessary for the installation of partitions made of PGP from our company.
Stages of installation of a partition from tongue-and-groove plates
1. Foundation preparation
One of the most important conditions to create a partition wall made of HGP, it is reliable and stable base. If the base has strong irregularities, it is necessary to perform a leveling layer using a self-leveling floor.
Before starting the installation, clean the floor from dust and dirt. After that, you can proceed to the installation of the partition.
2. Mounting the partition
To increase the adhesion of materials, it is necessary to process all surfaces that will be adjacent to the future partition primer. After the primer dries, mark and prepare the mixture - can be used any gypsum mounting mix.
To improve sound insulation and prevent other negative consequences, it is better to fix the partition to the base through an elastic porous material, such as cork. This step is advisory.
tongue-and-groove slabs mounted rows. GWP first row mounted from the wall placement on a layer of mounting mixture. The plate can be installed with the groove up or down. To obtain a high-quality design, it is necessary to check using the level of the vertical and horizontal of the future partition.
Before installing the next slab, apply a layer of adhesive to the already installed tongue-and-groove slab and base. After installing the second and subsequent plates, trim them with a mallet to obtain an even structure.
As a rule, to complete the partition it is necessary to use a non-whole GWP slab. There is nothing to worry about, because thanks to the voids, the material is very easily sawn with a hacksaw.
When laying the second and subsequent rows, it is necessary to observe the vertical joints at least 10 cm This makes the structure more durable.
Constantly control the width of horizontal and vertical joints to eliminate additional leveling steps when finishing pgp partitions, it should be minimal.
Plates necessary fasten to walls and bases: they are performed using mounting corners, dowel nails and self-tapping screws.
The last row must be mounted with a gap not less than 1.5 cm from the floor slab, the remaining gap is filled with mounting foam, after stripping the excess, it is necessary to putty the seam gypsum putty.
3.Finishing the GWP partition
First of all, you need to protect mechanical damage outside corners the resulting partition, for this it is used corner perforated profile 31*31. Internal corners are reinforced with reinforcing tape.
A leveling layer of gypsum putty must be applied to all corners.
For gasket electrical wires or wiring accessories, you can use structural cavities, which must be further expanded with a drill with a crown. With the same tool, it is necessary to prepare external holes for wiring accessories and wiring output.
Before application decorative coating: wallpaper or paint, it is necessary to clean the seams and process them and all irregularities with gypsum putty and prime the surface.
The video also reflects the moments of soundproofing partitions and installation attachments: shelves, plumbing.
Advantages of tongue-and-groove plates: 
- ease of assembly
- simplicity of openings
- minimum finishing
- does not require plastering works
- low price
- high fire resistance
PGP partitions are used for redevelopment of premises or for delimiting apartments in new buildings. They are distinguished by a smooth surface, ease of installation and budget cost. The blocks are connected using a tongue-and-groove system, the seams on the finished structure are minimal. This makes it possible not to putty, but immediately cover the wall with a primer and decorate it.
Tongue-and-groove slabs for partitions are rectangular elements with longitudinal grooves and protrusions (ridges) at the joints, necessary for a strong and seamless bond. Their standard sizes- 667x500x80 mm, the thickness can be 100 mm.
There are plates of tongue-and-groove type for partitions large sizes height from floor to ceiling.
Their installation is very fast, but you can’t cope with it on your own - due to heavy weight building elements are assembled by a whole team.
Types of tongue-and-groove blocks for interior partitions depending on the material of manufacture:
| View | Preparation method | Positive traits |
| Gypsum boards | From gypsum with plasticizing additives. Gypsum blocks for partitions are divided into moisture resistant (green) and those whose moisture transmission capacity is high. | Approved for installation in children's rooms. Another plus of gypsum blocks is ease of processing. Gypsum blocks are sawn at any angle - you can create structures from gypsum elements various forms and configuration. |
| silicate blocks | From quicklime and water with the addition of quartz sand using an autoclave. | They have significant soundproofing qualities. Resistant, compared with gypsum, to the action of moisture, have greater strength and durability. |
PGP-partitions can be corpulent and hollow. The latter weigh less (22 kg compared to 28 for monolithic ones), but do not withstand the suspension of massive household items.
Advantages of GWP partitions
The general advantages of a partition made of gypsum or silicone tongue-and-groove plates are:
The use of hollow slabs reduces the load on the supporting base.
The main advantage of such building elements: the installation of tongue-and-groove partitions is not difficult. The finished design does not require special finishing works. It is not necessary to plaster the wall, it is enough to cover with a primer and decorate.
Installation of partitions from PGP
The installation of partition elements made of gypsum or silicate in an apartment begins after the construction of the load-bearing parts, but before laying the subfloor and starting the painting and plastering work.
Installation of a partition from standard-sized tongue-and-groove plates takes only two to three days. This is due to the convenient tongue-and-groove system and the absence of the need for additional reinforcement.
When docking, any deviations along the planes are excluded, which allows you to assemble in a short time flat wall without even a millimeter error.
If you need to hide communications, special strobes are made in full-bodied blocks. In hollow wires and pipes can be laid in the inner cavity. If the construction of partitions from PGP does not involve gating, the double wall method is used. But they "eat up" twice as much space.
Materials and tools
To build a partition from tongue-and-groove slabs, you will need the following set of tools:
- roulette;
- electric drill;
- mallet;
- construction level;
- putty knife;
- hand saw;
- ruler, pencil;
- screwdriver;
- glue mixer.
From the materials you will need the blocks themselves, a sealant made of cork or felt, an edge tape, a rope, glue, a primer. Fasteners are also needed: screws, dowel-nails, fixing brackets - straight hangers or corners.
Preparatory work
The construction of a partition created from tongue-and-groove blocks requires some preparation. First of all, you need to check the correspondence of the floor and ceiling horizontal levels, and make sure that the tongue-and-groove slabs closely adjoin them: grind outstanding irregularities, fill cracked areas and recesses with a solution of cement and sand.
The blocks are brought into the room no later than 24 hours before installation, so that the material "adapts", that is, it has the necessary humidity and temperature.
Used to build a wall acrylic adhesive based on gypsum.
But it is very expensive, so many people replace it with a regular one. tile adhesive or a solution of cement and sand in a ratio of 1: 3 with the addition of polyvinyl acetate glue. If everything is thoroughly mixed, a rather plastic and finely dispersed mixture comes out, easily applied with a spatula. Laying with a mortar is easier, since its setting time is longer than that of gypsum glue.
Before the construction of interior partitions, all areas of surfaces in contact with them are primed and marked according to a previously created drawing.
Laying tongue-and-groove blocks
It is not difficult to assemble a partition from tongue-and-groove plates with your own hands. The main thing is not to violate the technology during the construction of bulkheads from GWP.
Installation guide for partitions made of tongue-and-groove plates - step by step instructions:
If an opening for a door is required in the design of a false wall, it is necessary to fix the blocks located on top. When mounting one row of blocks over an opening up to 0.8 m wide, we can mount them on a door frame or a non-permanent wooden lintel.
If the width is more than 0.8 m or it is necessary to lay several rows, it will be necessary to install a jumper for tongue-and-groove plates made of wooden blocks or a metal channel.
It is mounted on glue in specially made cuts about 5 cm deep in the corner blocks. After the solution has dried, the upper rows of plates are installed.
After completion of work, the tongue-and-groove partitions must be primed. Especially if tongue-and-groove gypsum boards. The primer ensures the adhesion of the decorative layer and will avoid the appearance of surface defects.
For decoration, any type of wallpaper and coloring are suitable. Kitchen and bathroom needs to be redone tiles or plastic panels. For the living room, nursery, bedroom, wallpaper or decorative plaster is more often chosen.
Tongue-and-groove partitions allow you to get a stable flat surface. They are a good alternative to plasterboard walls, they are easy to install and low cost. Thanks to the tongue-and-groove connection system, the joints of the elements become invisible. Due to this, it is possible to omit the puttying stage, immediately prime and proceed to the finishing.
Types of partitions
Partitions from tongue-and-groove plates, depending on the material of manufacture, are divided into:
- Silicate are made on the basis of quicklime and water with the addition of quartz sand. The mixture is pressed and kept in an autoclave. They do not burn and have high rates of sound insulation. Compared to gypsum types, such structures are more durable and resistant to moisture.
- GWP partitions are made on the basis of gypsum with the addition of plasticizers. They are divided into moisture resistant (green) and unstable to moisture. The device of such partitions can be performed in any premises, including children's rooms. Gypsum is environmentally friendly, non-flammable, has good sound insulation.
They are made hollow and monolithic. Hollow material is lightweight, but it will not be possible to hang massive shelves, lamps, etc. on it. Solid ones are able to withstand heavy loads.
Installation of plates for partitions is carried out after the construction of all load-bearing structures, but before laying the subfloor and before the start of finishing work.
Do-it-yourself installation
Installation of partitions from tongue-and-groove plates is done by hand or with the involvement of professional builders. The material has high thermal insulation, so it can be installed not only inside the room, but also right next to the cold walls in contact with the street.
The installation technology of tongue-and-groove partitions is quite simple. The main thing is to install the structure in level and tightly fix the elements together.
If it is necessary to hide communications without a strobe device, the technology of double partitions is used. The disadvantage is that they take up 2 times more space.
At sub-zero temperatures installation is carried out using frost-resistant adhesive compositions.
Tools
All necessary tools and the materials must be prepared in advance so that in the process of doing the work you are not distracted by a trip to the store for the missing copies.
It is necessary to assemble such devices for the installation of interior partitions from tongue-and-groove plates:
- felt seal;
- tongue-and-groove plates;
- damper tape, twine;
- cement, sand, gypsum for mortar preparation;
- special glue for tongue-and-groove tiles or glue for tiles;
- primer;
- building level, tape measure;
- pencil, ruler;
- fasteners: self-tapping screws, anchors, brackets;
- rubber mallet, spatula, hacksaw;
- drill, screwdriver, construction mixer.
Consumables should be selected in accordance with the recommendations of the manufacturer of tongue-and-groove plates.
Preparatory work
When the installation of tongue-and-groove partitions is carried out in a new house, you need to check the location of the floor and ceiling according to the horizontal level. The protruding parts of the surface are cleaned by grinding. Cracks and depressions are filled with cement-sand mortar.
The floor and ceiling must be prepared so that the tongue-and-groove plates fit snugly against them. Before installing partitions, all surfaces that will come into contact with them are treated with a primer.
When installing partitions during current repair on the floor, ceiling, walls make markings. Mark the location of the partition with a line. Remove everything from surfaces Decoration Materials a few millimeters wider than the markings show. Strongly adhering ceramic tiles can not be dismantled.
At a height of 30 cm from the floor, a string is pulled, which will indicate the level of the partition. A damper seal is glued along the line of contact of the partition with the surfaces: bitumen-impregnated felt or cork backing. The width must match the thickness of the slab.
Construction of the first row
The location of the entire structure will depend on the correct installation of the first row. Here is information on how to make a partition from tongue-and-groove blocks.
Step by step installation instructions:
- At the tongue-and-groove plates, which will be located in the first row, the lower ridges are cut off with a hacksaw.
- Glue is applied to the vertical and horizontal parts of the sealing material.
- A perforated bracket is brought to that part of the plate groove that will adjoin the wall, so that the fastener protrudes several centimeters.
- Fix the bracket to the wall with dowels or self-tapping screws.
- Install the plate upwards with a groove, press it firmly against the wall and floor, check that it is level, tap with a rubber mallet.
- From the installation side of the next plate, a bracket is inserted into the groove, attached with dowels to the floor.
- After setting adhesive composition install the next plate, fix it with a bracket to the floor.
- Each subsequent block is mounted after the adhesive has set on the previous one.
The adhesive composition is applied to the side joints so that the distance between the plates does not exceed 2 mm. The excess glue that has come out is immediately wiped off; after solidification, it will be problematic to remove the streaks.
When erecting walls from PGP, maximum attention is paid to the installation of the first row. The quality of its installation will depend on the reliability and appearance the whole structure.
Raising the rest of the rows
The second and subsequent rows are mounted with offset seams. The first plate of the second row is sawn in half. The row starts with half the block. On the sections of the tongue-and-groove blocks adjacent to the wall, brackets are fixed.
The adhesive composition is diluted so that it turns out to be more liquid than the one used for the first row. The adhesive composition is applied to the bottom and side joints of each plate. Using this technology, the entire wall is assembled.
Be sure to check the horizontal and vertical levels after installing each block.
Installing the last row
According to the technology, a compensation gap of 2 mm should remain between the ceiling and the blocks of the upper row.
In the upper grooves of the last row, staples are fixed to the glue. Install the block and screw the bracket to the ceiling with dowels. If the slab is larger than the remaining distance, it is cut to the correct size.
After the glue has hardened, the seam between the ceiling and the wall is blown with mounting foam. When it hardens, cut off the excess with a knife.
Technology of installation of partitions with a doorway
When a doorway is provided in the design of the partition, you need to consider how to strengthen the rows that will be above the opening.
If only one row of plates will be located above the opening up to 800 mm wide, then it is permissible to mount them on top of door frame or temporary support.
In the case when the opening is wider than 800 mm or several rows will be laid above it, you will need a reliable jumper made of thick wooden beam section 50 x 50 mm or metal channel 35.
PGP partitions with the arrangement of a doorway are mounted using a technology similar to the construction of a solid wall. The difference is that when markings are made, the location of the opening is marked, the wall is divided.
Lintels above the doorway:
- When the row reaches the upper level of the opening, cuts about 50 mm deep are made in the blocks on both sides. The width of the cutout is equal to the thickness of the beam or channel.
- Lubricate the blocks with glue and insert a jumper.
- After the adhesive composition has hardened, the upper rows of blocks are mounted.
If they plan to install in the partition interior door, the box under it can be mounted both at the stage of wall construction, and subsequently.
Strengthening the corners
In order for the outer corners to be obtained at 90 degrees and not to collapse under mechanical stress, they are reinforced with a perforated corner 3 x 3 cm.
Instructions for fixing corners:
- Using a spatula, putty is applied to the surface of the corner, a steel corner is pressed against it. Press it along the entire length.
- If the length is not enough, take another bar and apply an overlap of 3 cm.
- Apply a layer of putty on top with an angled spatula.
By inside corners lay a sickle tape. If it is without a self-adhesive base, it is fixed using the same technology as the perforated corner.
The protective layer is removed from the sickle on a self-adhesive basis and glued along the entire length of the corner.
Electrical wiring in partitions
After the partition is installed, it may be necessary to install sockets or switches. For a hidden wiring device, mark the location of the elements electrical system, make a strobe for wires and holes for boxes.
Technological cavities inside hollow partitions made of gypsum tongue-and-groove boards can be used for laying electrical wiring. To make it more convenient to lay wires in horizontal channels, blind holes are made on the side.
Stretch wires, connect sockets, switches. Close the holes with putty.
The distance between the strobes should not be less than 10 cm.
Wall decoration from tongue-and-groove slabs
Like any material, walls made of tongue-and-groove slabs need finishing. Materials for its construction are selected depending on functional purpose premises.
It is appropriate to lay ceramic tiles in the kitchen and bathroom. for living room and bedroom fit finishing decorative plaster, wallpaper, painting with water-based paints.
Painting
Before painting, the surface is puttied with fine-grained compounds, which make it possible to obtain an ideal smooth surface. After drying, rub the surface with a fine grinding mesh. Apply two coats of primer.
Prepare the paint, the desired shade is obtained by adding colors.
Start coloring. The paint is applied with a roller, make sure that the layer is uniform. You may need to apply several coats of paint.
Wallpapering
Cover the surface with a primer, apply a thin layer of plaster or putty.
Wallpaper decoration is carried out in the usual way. Dilute glue, cut off a strip of wallpaper of the desired length. Apply glue to wallpaper and wall. Apply a strip, smooth rubber roller expelling air bubbles.
When decorating with wallpaper in the room there should be no drafts.
Laying tiles
Finishing ceramic tiles does not require pre-training surfaces.
Tile laying instructions:
- the surface of the partition is cleaned of construction debris;
- the protrusions are cleaned with sandpaper;
- hollows, cracks are filled with cement mortar;
- for better adhesion of materials, the wall is covered with two layers of primer;
- perform tiling.
Because plaster surface absorbs water, the surface after installation of the tile is not touched for 3-5 days.
How to mount tongue-and-groove blocks, you can watch the video:
The partition of tongue-and-groove plates is assembled very easily and is robust design. Finishing such a surface can be done with any materials you like.
Partitions made of tongue-and-groove slabs (hereinafter referred to as GWP) are a prefabricated large-block structure. Blocks are made by molding. They are distinguished by increased accuracy - the deviation of the working surfaces is not more than 1.5 mm from the specified one. Depending on the raw materials used, they are divided into two types:
- silicate. Produced by silicification of quartz sand and lime in an autoclave under the influence of high temperatures. This technology makes it possible to obtain a durable, moisture-resistant, non-combustible material.
- Gypsum. The main raw material is gypsum. For achievement desired characteristics plasticizers and other chemical additives are introduced into it. This makes it possible to obtain the necessary strength and moisture resistance. Depending on this product are divided into types. The environmental safety of raw materials makes it possible to use it without restrictions even in children's rooms.
Dimensions of tongue-and-groove blocks for partitions different manufacturers may differ. We list the most common options:
- 667x500;
- 250x500;
- 300x900;
- 599x199.
Partition plates of all standard sizes are produced with a thickness of 70, 80 and 100 mm. Depending on the design they are divided into two types:
- Full bodied. They are solid monolithic elements. They are used if you need to provide high strength, for example, hang heavy shelves or cabinets.
- Hollow. Have round holes perforations. This makes them lighter and therefore easier to install. Due to the voids, the products have increased sound insulation. They can also be used as conduits for electrical wiring.
Depending on the purpose of the premises, inner wall can be made single or double. If placed between gypsum panels mineral wool insulation, you can achieve one hundred percent sound insulation between adjacent apartments.
Pros and cons of using tongue-and-groove blocks for partitions
Advantages:
- Availability. The use of the material is economically justified. Prefabricated gypsum structures are lighter than ceramic bricks, stronger than drywall and gas silicate foam. At the same time, their cost is lower by 10-30%.
- Safety. Raw materials for the production of GWP do not contain impurities harmful to health. The products themselves are highly fire resistant.
- Soundproofing. Subject to the installation technology, the wall prevents the penetration of loud sounds into adjacent rooms.
- Ease of installation. Thanks to the connection of individual elements according to the tongue-and-groove principle, even a person without experience in carrying out such work can cope with the construction of the PGP. The main thing is to correctly mark up and constantly control the straightness of the rule.
- Ease. The material is almost twice as light as brick, which reduces the load on the interfloor ceiling. At the same time, you get thinner interior partitions, which gives additional usable space.
Flaws:
- Hygroscopicity. Standard tongue-and-groove slabs absorb moisture well, and during the drying process they can be deformed. Therefore, it is important to mount them after the completion of all wet processes in the room.
- Fragility. At high loads, the material bursts at the point of greatest stress. Therefore, before the device of the wall along wooden floor, it needs to be well reinforced. In new buildings, which can shrink, it is imperative to use damping tapes.
- Foundation requirement. The large-block structure does not allow the adjoining surfaces to be leveled during the construction of walls, as can be done, for example, with a brick. This means that you first have to carefully align all the planes.
Technology of installation of partitions from tongue-and-groove plates
The construction of the GWP is started after the completion of plastering work, laying of electrical and plumbing communications, but before the installation of subfloors. Humidity should not exceed 60%, and the air temperature should be above 5 degrees.
Foundation preparation
All adjoining surfaces must be flat, strictly horizontal or vertical. If the planes do not correspond to the level, we level them with concrete or cement-sand mortar. The hardened base is dedusted and primed.
We apply markings on the floor in accordance with the project and mark the location doorways. With the help of a level or a laser line builder, we transfer the lines to the walls and ceiling.
You can quickly and perfectly evenly draw marking lines with a construction chopping cord. It's better to do it together.
To increase sound insulation, we glue a cork elastic gasket with a mounting solution to all surfaces adjacent to the GWP. We press it with a building level, controlling the correspondence of the vertical and horizontal.
For novice craftsmen, the contour of the cork gasket helps to achieve the perfect geometry of the walls. It serves as a guide when checking planes with a rule.
Partition wall fastening
Regular fasteners for PGP are brackets C3 (with a thickness of 1 cm) and C2 (with a thickness of 0.8 cm). They are screwed with screws to the walls, ceiling and wooden floor at the junction. On concrete floor the necessary strength creates an adhesive solution.
But more often for fastening they use mounting equal-shelf corners 100x100 mm or drywall hangers.
With a ceiling height of 2800 mm, it is enough to fix the vertical in three places. Horizontally, fasteners are installed every 600 - 1000 mm.
Gypsum panels remain stable when erecting straight structures up to 3600 mm high and 6000 mm long. The distance is measured between the corners of the intersection.
Corner plates must be fastened to each other with perforated tape or a suspension for plasterboard.
The construction of the first row of tongue-and-groove blocks
After delivery of the material to the object, it must be laid down for a day. During this time, the temperature and humidity levels out.
Gypsum panels can be laid with the groove up or down. In the first variant, the mortar mixture is more evenly distributed over the plane of contact between the elements. Therefore, before arranging the first row with a hacksaw with a large tooth, we cut off the comb from the bottom side. Installation is carried out in next sequence:
- Knead a small portion of the adhesive solution. Special attention time must be devoted to its viability. Usually it is 30-60 minutes.
- We apply glue according to the markings on the floor and wall.
- We install the first tongue-and-groove block. We apply the level from above and, tapping with a rubber mallet, align the horizontal. Each time, with a small level or a long marking rule, we control the vertical.
- Immediately remove the excess mortar mixture. When hardened, it will spoil the finish coating.
- If necessary, we fix the plate to the enclosing structures.
We repeat the steps for the remaining elements of the first row. We pay special attention to the conformity of dimensions, straightness and verticality. For control, we use the level, roulette and the rule.
The construction of subsequent rows
General principles installation remain the same, but there are some peculiarities. Do not allow the vertical seams of adjacent rows to coincide. It is necessary to perform them with a run of at least 1 cm. To do this, cut the block in half. We install one part of it on the whole panel, which started the first row. The second one is used as a supplement.
It is important to observe the dressing in the corners and intersections of the walls. If the block has a groove and a ridge along its entire length, we cut them at the corner joints. Otherwise, the comb will not go into the groove.
Due to the low viability of the adhesive solution, we first cut the parts and adjust their size to dry. Only after that we fill the groove with glue, and install the element. Be sure to remove the squeezed out excess mortar mixture.
Formation of doorways
When arranging an opening up to 900 mm wide, you can do without additional load-bearing structures. At the same time, it is important to arrange it so that there are no freely hanging plates above the door. Therefore, for such places, we first draw a laying scheme on paper. We start with a row above the doorway. We place the vertical seam in the middle of the span. Only then do we paint the rest of the elements, adhering to the rule of spacing the seams.
At the stage of erecting the wall, we fasten a temporary jumper made of wood or a drywall profile (supports are allowed). After the adhesive mixture has hardened, remove the temporary mounting parts.
Above openings wider than 900 mm, we must install a jumper: a wooden block, metal corner or channel. The support should be in the range of 100-150 mm. The top of the door does not have to be horizontal. assembly seam. It is enough to cut the groove for the jumper at the right level.
It is important to think in advance about the finishing of embedded elements. Metal parts are covered with paint in three layers. We impregnate the wooden ones with an antiseptic, and for better adhesion we sheathe the front parts with strips of drywall.
The construction of the last row of tongue-and-groove blocks
It is inconvenient to finish laying with narrow trimmings. Therefore, for ease of installation, it is allowed to install the plates of the upper row vertically. The tongue-and-groove system does not allow joining the elements right up to the ceiling. A clearance is required for their installation. To facilitate the sealing of the seam, we cut the upper plane diagonally. On the side closest to the installer, a gap of 2-3 millimeters is sufficient. The cutting line of the far part should be at a distance of 2-5 cm from the overlap.
If you are planning to install stretch ceiling, we foam the gap with mounting foam. When it is important to make a smooth abutment, we fill the hole gypsum plaster. We do this in several stages, observing the layer thickness recommended by the manufacturer.
It is important to fix the GWP to the ceiling with mounting brackets or corners. Otherwise, the top edge may become loose.
Electrical installation
If necessary, we lay wiring in the tongue-and-groove partitions, install sockets and switches. In hollow blocks we use internal channels. If you know the places for laying communications in advance, you can pre-drill the holes in the ridge to the desired diameter. This will make wiring easier.
In full-bodied panels, we cut the strobes with a manual or mechanical strobe cutter. Holes for socket boxes are drilled with crowns on wood.
It is not allowed to use impact tools: hammer drill or impact drill.
Prepared channels are dedusted and primed. After installing the cables, we close the strobes with plaster adhesive solution.
For clarity, and to simplify the installation of partitions from tongue-and-groove plates with our own hands, we provide a video instruction.
Of course, interior partitions can be built in the old fashioned way - from bricks or thick blocks. Drywall looks more attractive in terms of construction speed, but the material does not have a sufficient margin of safety and sound insulation.
Therefore, the tongue-and-groove slab remains a popular option, which has long been successfully used in residential and commercial construction.
What are tongue-and-groove plates made of and what are they
If we talk about GWP as specialized wall materials, there are two types.
1. Gypsum GWP boards
It is immediately worth clarifying that the tongue-and-groove plate fully complies with the requirements environmental safety. The main component in the manufacture is cement and gypsum grades G-4 and G-5, which are classified as environmentally friendly. Additives are added to the composition that increase strength and moisture resistance.
Physical and technical characteristics of the gypsum material
The technical characteristics of the GWP may differ depending on the raw materials used, and the structure of the finished partition block (hollow and solid).
However, when buying, you can be guided by the following parameters:
| Index | Unit ism | Plates according to specifications | |
| Ordinary TU5742-007-16415648-98 | Hydrophobized (moisture resistant) TU5742-014-03984362-96 | ||
| Density, no more | kg/m³ | 1250 1100||
| Water absorption no more | % | 26-32 | 5 |
| Plate weight | kg | 24 | 29 |
| Compressive strength | MPa | 5,0 | |
| Flexural strength | MPa | 2,4 | |
| Thermal conductivity coefficient, λ A Thermal conductivity coefficient, λ B |
W/m °C | 0,29 . 0,35 . |
|
| Specific effective activity of radionuclides, not more than | Bq/kg | 370 | |
| Noise isolation | dB | 43 | |
| combustibility | group | NG | |
Moisture resistant gypsum boards
Ordinary tongue-and-groove slabs are used for the construction of partitions or wall cladding at dry or normal humidity levels. For wet rooms specialized moisture-resistant boards are needed, which are easy to distinguish by their characteristic green color.
This point must be taken into account when buying material. If you place a conventional GWP made of gypsum in a humid environment, the partition will "creep" after a while.
Plasterboard dimensions
Permissible deviations from the nominal dimensions: along the length ± 3mm; width ±2mm; thickness ±1mm.
Whole slabs in 1 m3 - 37 pcs.
How many per pallet - 32 pcs.
Weight of gypsum boards
Due to the standard size, the weight of the tongue-and-groove plates is also reduced to the same values. In particular:
Standard and moisture-resistant solid boards weigh 24 and 29 kilograms, respectively.
The lightweight version (hollow) weighs 22 kilograms.
Thanks to these parameters, installation is conveniently carried out by one person.
2. Silicate tongue-and-groove slabs
Due to the presence of large players in the market and affordable raw materials wall slabs this type is cheaper than gypsum ( benefit - more than 100 rubles per 1 m2). They can be used in rooms with high humidity, and excellent geometry allows you to do without plaster.
Plates similarly silicate brick are made from quartz sand and quicklime by pressing. Such plates have a higher density than gypsum, which, on the one hand, gives an increased coefficient of thermal conductivity, and on the other hand, increased strength.
Technical characteristics of silicate partition boards
Density - from 1225 to 1870 kg / mᶟ (depending on voidness).
Strength - M 150.
The thermal conductivity coefficient is about 0.045 W / (m * C).
Airborne sound insulation index - from 47 to 52 dB.
Dimensions and weight of GWP from silicate
These plates have excellent geometry, but dimensions samples made by different companies may vary slightly (see table below). The dimensions of the plate are somewhat smaller than those of gypsum.
Material with a thickness of 115 mm, manufacturers suggest using it as inter-apartment.
Quantity per pallet 54 pcs
Glue consumption ~ 50 kg per 1 pallet
Types of building GWP: solid and hollow (porous)
Both gypsum and silicate boards are filled with two types: full-bodied and porous (hollow). A conventional plate is made in the form of a solid parallelepiped and is more durable. Porous due to voids will have better sound insulation with less weight.
Tongue-and-groove slabs deserve high marks from professional builders and are steadily growing in popularity. However, there are no ideal building materials. Therefore, consider the main advantages and disadvantages of wall slabs.
Pros and cons of plates for the construction of partitions
Advantages:
Relatively small thickness and weight.
High margin of safety of the material and a reliable system for fixing plates.
Fire safety.
Immunity to any microflora: mold and fungus. The opinion that they can appear inside hollow slabs has not been confirmed at the moment.
Ease of processing: the plates can be sawn with a regular hacksaw.
High installation speed: GWP are joined according to the tenon-groove principle (the construction time is 20% higher than brickwork).
The minimum thickness of the seam (only 2mm).
Economic benefit compared to other materials.
Flaws:
Not suitable for the construction of supporting wall structures.
Relatively low sound insulation.
With drops concrete base 3mm or more requires a leveling layer.
Subsidence of the base plate and / or walls can lead to the collapse of the entire partition - the structure must be insulated with a special elastic (damping) tape.
As seen from comparative analysis, GWP - the material has its own specifics, which must be taken into account during installation.
How to glue, plaster, primer and paint so that everything does not fall off
Which glue to choose for reliable installation
For this type of material, a special glue is needed, which will not only simplify the work, but also ensure the reliability of the structure. There are several proven brands of adhesive on the market that are suitable for the construction of HGP partitions. In particular, the boards can be glued:
BOLARS Gypsum contact
Volma-montage
KNAUF FUGEN (Knauf Fugenfüller)
Average glue consumption
There are no clear standards here, but it is better to adhere to the proportion of 1.5 kg / m2 or, as mentioned above, ~ 50 kg per 1 pallet.
How to plaster a finished wall
Another indisputable advantage of GWP is the absence of the need for wall plastering. The plates have a smooth structure, so with carefully sealed joints, it is possible to carry out finishing right on the base. If there is a need for plastering the walls, and this happens only if there are chips from inaccurate installation, then the usual cement-sand mortar it will fit here. It is better to use plaster on plaster base, rotband, betokontakt or finishplast.
How to prime the surface
Surface priming is carried out to increase adhesion. For these purposes, you can use the usual primer, which is applicable to gas silicate blocks and similar materials. The author of the article happened to use for processing plaster wall before pasting wallpaper acrylic primer Tiefgrund (Tifgrunt) with excellent results.
wall painting
PGP can be painted with water-based, oil, polyurethane, resin, and epoxy paints containing polymers. Lime and liquid glass-based paints cannot be used.Proven manufacturers
The tongue-and-groove slabs are presented on the market with a fairly wide range. Therefore, here is a list of proven manufacturers whose products you can trust.
KNAUF. German company, which specializes in the manufacture of dry mixes and building materials. The tongue-and-groove plates of this manufacturer are distinguished by absolute geometry, which makes installation more comfortable. The thickness of products varies between 80-100 mm. It is worth noting that this is the highest quality and most expensive product on the market.
Volma. Volgograd enterprise, whose products account for more than 40% of the domestic construction market. The manufacturer produces standard and waterproof tongue-and-groove plates, 80 mm thick. In fact, this is a great alternative to the previous manufacturer, which attracts buyers. affordable price and high quality.
OOO "Magma". This is a relatively young manufacturer, which announced its existence in 2012. The company uses proven technologies and modern equipment. The key advantage of this company's products is the production of their own glue, which usually comes with the boards.
OJSC "Gypsopolymer". A Russian enterprise that has been producing dry building mixes since 1953. Using the accumulated experience, the company produces high-quality tongue-and-groove slabs that confidently compete with Western counterparts.
GIFAS. This trademark Sverdlovsk plant of gypsum products. The enterprise has been operating since 1959, today it is engaged in the production of hollow and solid tongue-and-groove slabs, 80 mm thick.
The products of these enterprises fully comply with international standards quality and Russian GOST standards.
Installation rules
Installation of interroom partitions from tongue-and-groove slabs begins after the erection of load-bearing structures. Work is performed in the following order:
The base is leveled, cleared of construction debris.
The first row of plates is laid, with preliminary application of adhesive in the joint groove. The recommended thickness of a seam - no more than 2 mm.
Subsequent rows can be fixed to the walls with dowel-nails or staples.
The remaining gap between the wall and the ceiling must be filled with mounting foam or laid with a special elastic tape.
After the partition is erected, strobes are made in it for wiring, sockets and switches, they are puttied and the finish is performed.
How to cut material
Bulgarian. It will cope with the task, but it will be very noisy, dusty and unsafe. Be sure to take a couple of minutes to study the article about this wayward tool.
Special hacksaw. If you don’t feel sorry for the tool, then you can use the usual one, but it’s better to purchase a special high-hardness saw with a self-sharpening tooth.
Electroblick. If there is nothing else at hand, then it will do, but skill is required here. Even with a good blade, the cut noticeably "walks".
We hope that the article was useful for you. Feedback is always welcome through the contacts listed on the "About the site" page. Good luck at the construction site!
